Cedir Men's Trunk Underwear Faux Leather Hoop Boyshorts Boxers S(Fit Waist 26.8"~30.7")/M(Fit Waist 29"~33")/L(Fit Waist 31.5"~35.4")/XL(Fit Waist 33.9"~38.6") 80% Polyamid + 20% Elastine Leather like ,near skin fabric Trunk Short Boxers design Machine wash in soft cycle or hand wash. Do not use chlorine bleach.Do not iron.